Lines of symmetry for circles

This is an instructional task that gives students a chance to reason about lines of symmetry and discover that a circle has an an infinite number of lines of symmetry. Even though the concept of an infinite number of lines is fairly abstract, students can understand infinity in an informal way.
Resource ID#: 43277 Type: Problem-Solving Task
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General Information

Subject(s): Mathematics
Grade Level(s): 3, 4
Intended Audience: Educators educators, Students , Parents
Keywords: Lines of symmetry for circles, lines, symmetry, circles, cpalms, icpalms, illustrativemathematics.org, illustrative mathematics, tasks, mathematics, math, resource, free, freely available, problems-based learning, student activities, Florida Standards
Instructional Component Type(s): Problem-Solving Task
Resource Collection: Illustrative Mathematics

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